Effective cementation and removal of arsenic with copper powder in a hydrochloric acid system

Wu, Lian-Kui; Xia, Jie; Zhang, Yufeng; Li, Yingying

doi:10.1039/c6ra07632g

Cited by 13 publications

(1 citation statement)

References 56 publications

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“…Low cost, low energy consumption, recovery of metals in pure metallic form, ease of control, simplicity of operation, and high efficiency make the cementation process most advantageous [1,30,31]. The most common cementation agents are iron and zinc [32]. The main disadvantage of the cementation technique is its excess sacrificial metal consumption [33].…”

Section: Introductionmentioning

confidence: 99%

Cavitation-Dispersion Method for Copper Cementation from Wastewater by Iron Powder

Shishkin

Mironovs

et al. 2018

Metals

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The circular economy for sustainable economic deployment is strongly based on the re-use of secondary products and waste utilization. In the present study, a new effective cementation method for recovering valuable metallic copper from industrial wastewater using Fe0 powders is reported. A high-speed mixer-disperser (HSMD) capable of providing a cavitation effect was used for the rapid intake, dispersion, and mixing of Fe0 powder in an acidic wastewater solution (pH ≈ 2.9) containing copper ions mainly in the form of CuSO4. Three iron powders/particles were tested as the cementation agent: particles collected from industrial dust filters (CMS), water-atomized iron-based powder AHC100.29, and sponge-iron powder NC100.24. The effects of mixing regimes and related mixing conditions on the effectiveness of the Cu cementation process were evaluated by comparison between the HSMD and a laboratory paddle mixer. It was observed that the use of cavitation provided more efficient copper removal during the copper cementation process in comparison to the standard experiments with the propeller mixer. Under the cavitation regime, about 90% of copper was cemented in the first five minutes and the final copper removal of 95% was achieved using all three Fe0 powders after seven minutes of cementation. In comparison, only around 55% of copper was cemented in the first seven minutes of cementation using the traditional mixing method.

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Section: Introductionmentioning

confidence: 99%

Cavitation-Dispersion Method for Copper Cementation from Wastewater by Iron Powder

Shishkin

Mironovs

et al. 2018

Metals

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show abstract

Deep Electrochemical Purification of High Arsenic-Bearing Copper Refined Electrolyte

Qin

Meng²,

Fang³

et al. 2023

J. Sustain. Metall.

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Facile fabrication metal Cu-decorated g-C3N4 photocatalyst with Schottky barrier for efficient pollutant elimination

Liu

Wang

et al. 2022

Diamond and Related Materials

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Effective cementation and removal of arsenic with copper powder in a hydrochloric acid system

Abstract: This work investigated the removal and cementation of arsenic from a hydrochloric acid system with copper powder.

Cited by 13 publications

References 56 publications

Cavitation-Dispersion Method for Copper Cementation from Wastewater by Iron Powder

Cavitation-Dispersion Method for Copper Cementation from Wastewater by Iron Powder

Deep Electrochemical Purification of High Arsenic-Bearing Copper Refined Electrolyte

Facile fabrication metal Cu-decorated g-C3N4 photocatalyst with Schottky barrier for efficient pollutant elimination

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